I am not an architect so i won't comment on that, but visually I think the texture is overpowering the image. I like the sketchy effect, it's nice but a bit strong. I was very intrigued when I saw the thumbnail, I was hoping the whole image was more sketchy. So either try making the house more sketchy to match the effect or tone down the sketch effect to match the house. Move the sun also, the back and side of your house are the same values, I would make one side darker than the other.
pmanahan